diff options
Diffstat (limited to 'src/net.cpp')
| -rw-r--r-- | src/net.cpp | 31 |
1 files changed, 12 insertions, 19 deletions
diff --git a/src/net.cpp b/src/net.cpp index 337cf60680..a53835f999 100644 --- a/src/net.cpp +++ b/src/net.cpp @@ -130,14 +130,10 @@ uint16_t GetListenPort() { // If -bind= is provided with ":port" part, use that (first one if multiple are provided). for (const std::string& bind_arg : gArgs.GetArgs("-bind")) { - CService bind_addr; constexpr uint16_t dummy_port = 0; - if (Lookup(bind_arg, bind_addr, dummy_port, /*fAllowLookup=*/false)) { - if (bind_addr.GetPort() != dummy_port) { - return bind_addr.GetPort(); - } - } + const std::optional<CService> bind_addr{Lookup(bind_arg, dummy_port, /*fAllowLookup=*/false)}; + if (bind_addr.has_value() && bind_addr->GetPort() != dummy_port) return bind_addr->GetPort(); } // Otherwise, if -whitebind= without NetPermissionFlags::NoBan is provided, use that @@ -461,9 +457,9 @@ CNode* CConnman::ConnectNode(CAddress addrConnect, const char *pszDest, bool fCo const uint16_t default_port{pszDest != nullptr ? Params().GetDefaultPort(pszDest) : Params().GetDefaultPort()}; if (pszDest) { - std::vector<CService> resolved; - if (Lookup(pszDest, resolved, default_port, fNameLookup && !HaveNameProxy(), 256) && !resolved.empty()) { - const CService rnd{resolved[GetRand(resolved.size())]}; + const std::vector<CService> resolved{Lookup(pszDest, default_port, fNameLookup && !HaveNameProxy(), 256)}; + if (!resolved.empty()) { + const CService& rnd{resolved[GetRand(resolved.size())]}; addrConnect = CAddress{MaybeFlipIPv6toCJDNS(rnd), NODE_NONE}; if (!addrConnect.IsValid()) { LogPrint(BCLog::NET, "Resolver returned invalid address %s for %s\n", addrConnect.ToStringAddrPort(), pszDest); @@ -1487,7 +1483,6 @@ void CConnman::ThreadDNSAddressSeed() if (HaveNameProxy()) { AddAddrFetch(seed); } else { - std::vector<CNetAddr> vIPs; std::vector<CAddress> vAdd; ServiceFlags requiredServiceBits = GetDesirableServiceFlags(NODE_NONE); std::string host = strprintf("x%x.%s", requiredServiceBits, seed); @@ -1496,8 +1491,9 @@ void CConnman::ThreadDNSAddressSeed() continue; } unsigned int nMaxIPs = 256; // Limits number of IPs learned from a DNS seed - if (LookupHost(host, vIPs, nMaxIPs, true)) { - for (const CNetAddr& ip : vIPs) { + const auto addresses{LookupHost(host, nMaxIPs, true)}; + if (!addresses.empty()) { + for (const CNetAddr& ip : addresses) { CAddress addr = CAddress(CService(ip, Params().GetDefaultPort()), requiredServiceBits); addr.nTime = rng.rand_uniform_delay(Now<NodeSeconds>() - 3 * 24h, -4 * 24h); // use a random age between 3 and 7 days old vAdd.push_back(addr); @@ -2201,14 +2197,11 @@ void Discover() char pszHostName[256] = ""; if (gethostname(pszHostName, sizeof(pszHostName)) != SOCKET_ERROR) { - std::vector<CNetAddr> vaddr; - if (LookupHost(pszHostName, vaddr, 0, true)) + const std::vector<CNetAddr> addresses{LookupHost(pszHostName, 0, true)}; + for (const CNetAddr& addr : addresses) { - for (const CNetAddr &addr : vaddr) - { - if (AddLocal(addr, LOCAL_IF)) - LogPrintf("%s: %s - %s\n", __func__, pszHostName, addr.ToStringAddr()); - } + if (AddLocal(addr, LOCAL_IF)) + LogPrintf("%s: %s - %s\n", __func__, pszHostName, addr.ToStringAddr()); } } #elif (HAVE_DECL_GETIFADDRS && HAVE_DECL_FREEIFADDRS) |